icinga2-checks/check_file_exists.sh

#!/bin/bash

# Parse command line arguments
while [[ "$#" -gt 0 ]]; do
    case $1 in
        --file) file="$2"; shift ;;
        *) echo "Unknown parameter passed: $1"; exit 1 ;;
    esac
    shift
done

if [[ -z "$file" ]]; then
    echo "No file provided. Please provide a file with --file."
    exit 3
fi

# Check if file exists
if [[ -f "$file" ]]; then
    echo "OK - file exists: \"$file\""
    exit 0
else
    echo "CRITICAL - file does not exist: \"$file\""
    exit 2
fi